Self-assembly of ultrathin porous NiO nanosheets/graphene hierarchical structure for high-capacity and high-rate lithium storage

A unique ultrathin porous NiO nanosheets/graphene hierarchical structure is successfully fabricated via a facile, effective, and general strategy. The advantageous combination of conducting and flexible graphene and porous and ultrathin NiO nanosheets endows the obtained hybrid with a remarkable lithium-storage performance, including high reversible capacity, good rate capability and cycle performance.